<div dir="ltr"><div>Hi,</div><div><br></div><div>I can not tell you about everybody, but usually when I get this problem 99% of the time the issue is on the provider side. I would try to reproduce this issue by myself and capture pcap files and analyze those.<br></div><div><br></div><div>With kind regards,<br></div><div><br></div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Jurijs<br></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Oct 6, 2021 at 7:43 PM John Hardiman <<a href="mailto:john.hardiman@missionlabs.co.uk">john.hardiman@missionlabs.co.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Christoph,<br>
<br>
For the CPU part: On linux boxes if a process in top goes over 100% or top shows >1.0 in load, this means that more than one core is occupied. Since you have 16 cores this is fine as you are using 1/16 of your CPU for the FreeSWITCH process. So 200% would be 2 cores fully used etc, etc.<br>
<br>
For the Jitter part/dropping MoS, we might need a bit more info, like times or patterns that is happens or even what the MoS drops by and how much jitter is seen. I personally use SNGrep and a combination of Homer/VoIPMonitor to get all of the stuff I need. <br>
<br>
Accurate monitoring will point you in the right direction if there is an issue (Homer 7 is free and really good as a side note)<br>
<br>
Thanks,<br>
<br>
John.<br>
<br>
-----Original Message-----<br>
From: Christoph Russow <<a href="mailto:russow@emtex.de" target="_blank">russow@emtex.de</a>> <br>
Sent: 05 October 2021 10:34<br>
To: <a href="mailto:freeswitch-users@lists.freeswitch.org" target="_blank">freeswitch-users@lists.freeswitch.org</a><br>
Subject: [Freeswitch-users] Jitter and dropping MOS score<br>
<br>
Hi all,<br>
<br>
we are currently experiencing jitter and dropping MOS score on an increasing amount of calls on our system.<br>
<br>
i can't see any increased load on our system (neither CPU nor I/O wise).<br>
<br>
Current stats:<br>
<br>
~ 15Mbit/s network traffic (on a 1Gbit/s network) load average: 1,10, 0,82, 0,91 (16 core machine) memory used: 2,26GB/16GB<br>
<br>
freeswitch@lc1> status<br>
UP 0 years, 12 days, 13 hours, 30 minutes, 24 seconds, 649 milliseconds,<br>
831 microseconds<br>
FreeSWITCH (Version 1.10.1 -release-12-f9990221e6 64bit) is ready<br>
137634 session(s) since startup<br>
218 session(s) - peak 245, last 5min 222<br>
1 session(s) per Sec out of max 30, peak 8, last 5min 2<br>
1000 session(s) max<br>
min idle cpu 0.00/95.37<br>
Current Stack Size/Max 244K/244K<br>
<br>
System ist not virtualized.<br>
<br>
the only "strange" thing i see is the freeswitch "main"process that consumes (according to htop) >=100% cpu (see attached screenshot).<br>
Can this be the problem? if yes what can i do against it.<br>
<br>
if not what are possible bottlenecks i should weed out?<br>
<br>
if you need any additional informations to help me sort out this problem please don't hesitate to ask.<br>
<br>
Thanks in advance and best regards<br>
Christoph<br>
<br>
<br>
<br>
--<br>
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Christoph Russow<br>
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